The Tamiya 70257 Walking & Swimming Duck is a compact educational model that highlights mechanical motion in a charming package. Its ability to traverse land and water provides a clear demonstration of gearing, linkages and waterproof design for model enthusiasts and learners.
The parallel linkage mechanism reproduces the duck's head bob while the submarine motor supplies propulsion. The body and head are molded from white polyethylene and the gearbox uses gray polypropylene. Performance figures include roughly 25cm/s on land and 6.5cm/s in water, with about 1.5 hours running time from one AAA cell, not supplied.
The build uses snap together parts with screw fittings so no glue is required, making assembly straightforward. Waterproof stickers are provided for the beak and eyes so you can personalise the finished model without compromising water resistance.
This model serves as a practical example of simple mechanical design and small motor applications, suitable for classroom demonstrations or as a neat addition to a themed model collection within the Educational Construction range.
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